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Polyisocyanate and waterglass based hybrid resins, composites containing them and process to produce them

A technology for polyisocyanate and mixed resins, which is applied in the field of preparing the mixed resins and composites, and can solve problems such as impact and uncontrollable reactions

Inactive Publication Date: 2007-07-04
POLINVENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, additives that reduce the size of the droplets and increase their stability significantly affect the polyisocyanate / polyisocyanurate transition (trimerization) and water / polyisocyanate (polyurea formation) reactions, which may become impossible control

Method used

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  • Polyisocyanate and waterglass based hybrid resins, composites containing them and process to produce them
  • Polyisocyanate and waterglass based hybrid resins, composites containing them and process to produce them
  • Polyisocyanate and waterglass based hybrid resins, composites containing them and process to produce them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 14

[0100] The weight parts of the raw materials used in the examples of the present invention and the obtained fracture mechanical property data are summarized in Table 1. We have paid attention to make the ratio of P-MDI / water glass / phosphate ester in each embodiment the same. In each case, 1.5 parts of initiator was given to 100 parts of vinyl ester (this is the reason why the total of mixed resin and vinyl resin is not 100 parts).

Embodiment 15-21

[0101] Examples 15-21 (comparative)

[0102] For comparison, pure vinyl resins, hybrid resins made from pure vinyl resins and isocyanates, and pure 3P resins were tested. The data of the comparative example (CE) is also shown in Table 1.

[0103] Example

serial number

VE(B 1 )

VE(B 2 )

VE(N)

VE(SO)

BPO

P-

MDI 1

P-

MDI 2

MDI-

Prep.

Sodium

Water glass

TBP

TPP

TTP

Kc

(MPa / m)

Gc

(kJ / m 2 )

1

---

---

25,00

---

0,38

31,50

---

---

30,00

9,00

4,50

-

1,50

1,85

2

---

---

75,00

---

1,13

10,50

---

---

10,00

3,00

1,50

-

1,30

0,95

3

10,00

---

---

---

0,15

37,80

---

---

36,00

10,80

5,40

-

1,15

...

Embodiment 22

[0108] Example 10 was repeated, except that 0.5% by weight of Perenol F40 was added as a surfactant to the water glass component. The result obtained is Kc=1.4 and Gc=3.3. This shows that the mechanical properties, especially the Gc value, are better than those of Comparative Examples 15 or 21, but we have not been able to show that the presence of the surfactant leads to a further reduction in the main particle size.

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Abstract

A new hybrid resin having improved mechanical and fracture mechanical properties is provided which contains polyisocyanate and / or blocked polyisocyanate, water glass and organic phosphoric acid ester and / or other plasticizer, characterized in that it also contains vinyl ester and / or polyester as resin component. The invention also relates to the composite produced using such hybrid resin and the processes for producing the resin and the composite.

Description

Technical field [0001] The guest of the present invention is a new hybrid resin containing polyisocyanate and / or blocked polyisocyanate, water glass and organic phosphate and / or other polymer plasticizers, and the hybrid resin has improved mechanical properties and Fracture mechanical properties, and contain vinyl ester and / or polyester as the resin component. The present invention also relates to a liquid system containing two or more components for preparing the mixed resin, a composite prepared with such a mixed resin, and a method for preparing the mixed resin and the composite. Background technique [0002] The resin of the present invention belongs to a complex copolymer containing polyisocyanate / water glass that has been continuously developed since the late 1970s. These copolymers have some advantages over conventional organic copolymers, because, firstly, the cross-linking reaction used for their preparation can also occur in an aqueous medium, and secondly, these produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/68C08K5/00C08K3/36
CPCC08K5/0016C08G18/3895C08G18/68C08L75/04
Inventor J·卡格-科西G·纳吉L·维利米
Owner POLINVENT